<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>3-14 silent</title>
</head>
<body>
<div id="app">
    {{msg}}
</div>
</body>
<script src="./js/vue.js"></script>
<script>
    Vue.config.silent=true
    new Vue({
        el:"app"
    })
</script>
</html>